TY - JOUR
T1 - Establishment of a Bombyx mori nucleopolyhedrovirus (BmNPV) hyper-sensitive cell line from the silkworm e21 strain.
AU - Lee, Jae Man
AU - Kawakami, Naoya
AU - Mon, Hiroaki
AU - Mitsunobu, Hitoshi
AU - Iiyama, Kazuhiro
AU - Ninaki, Satoshi
AU - Maenaka, Katsumi
AU - Park, Enoch Y.
AU - Kusakabe, Takahiro
N1 - Funding Information:
This work was supported in part by KAKENHI Nos. 22248003, 22248004 and 23580077 from the Japan Society for the Promotion of Science. The cost of publication was supported in part by the Research Grant for Young Investigators of Faculty of Agriculture, Kyushu University. Cultured silkworm cell lines used in this study were kindly provided by Dr. Aoki, Kyushu University.
PY - 2012/10
Y1 - 2012/10
N2 - Baculoviral expression systems, including those of Autographa californica multiple nucleopolyhedrovirus Bombyx mori nucleopolyhedrovirus (BmNPV), are used for recombinant protein production. Four B. mori-derived (BmN4, Bm5, Bmc140, and Bme21) cell lines were infected with recombinant BmNPV viruses expressing firefly luciferase or EGFP as reporters under the control of a viral polyhedrin promoter. Bme21 exhibited significantly higher (100-fold) luciferase activity than BmN4 and Bm5. With the EGFP reporter protein, Bme21 cells showed a marked increase in the ratio of EGFP-positive cells, reaching 90 % on day 4 post-infection, while Bm5 and BmN4 cells had a slow increase in the ratio of their EGFP-positive population. The viral titer in a supernatant of Bme21 cell culture increased faster than those of Bm5 and BmN4 cells. This susceptibility indicates that the Bme21 cell line is useful for large-scale protein expression using BmNPV.
AB - Baculoviral expression systems, including those of Autographa californica multiple nucleopolyhedrovirus Bombyx mori nucleopolyhedrovirus (BmNPV), are used for recombinant protein production. Four B. mori-derived (BmN4, Bm5, Bmc140, and Bme21) cell lines were infected with recombinant BmNPV viruses expressing firefly luciferase or EGFP as reporters under the control of a viral polyhedrin promoter. Bme21 exhibited significantly higher (100-fold) luciferase activity than BmN4 and Bm5. With the EGFP reporter protein, Bme21 cells showed a marked increase in the ratio of EGFP-positive cells, reaching 90 % on day 4 post-infection, while Bm5 and BmN4 cells had a slow increase in the ratio of their EGFP-positive population. The viral titer in a supernatant of Bme21 cell culture increased faster than those of Bm5 and BmN4 cells. This susceptibility indicates that the Bme21 cell line is useful for large-scale protein expression using BmNPV.
UR - https://www.scopus.com/pages/publications/85027937703
UR - https://www.scopus.com/pages/publications/85027937703#tab=citedBy
U2 - 10.1007/s10529-012-0971-y
DO - 10.1007/s10529-012-0971-y
M3 - Article
C2 - 22714272
AN - SCOPUS:85027937703
SN - 0141-5492
VL - 34
SP - 1773
EP - 1779
JO - Biotechnology Letters
JF - Biotechnology Letters
IS - 10
ER -